//引入命名空间
using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;

public class Server
{
    public static void Main(string[] args)
    {
        // Create the server channel.
        HttpServerChannel serverChannel = new HttpServerChannel(9090);

        // Register the server channel.
        ChannelServices.RegisterChannel(serverChannel);

        // Expose an object for remote calls.
        RemotingConfiguration.RegisterWellKnownServiceType(
            typeof(RemoteObject), "RemoteObject.rem", 
            WellKnownObjectMode.Singleton);

        // Wait for the user prompt.
        Console.WriteLine("Press ENTER to exit the server.");
        Console.ReadLine();
        Console.WriteLine("The server is exiting.");
    }
}

//引入命名空间
using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;
using System.Security.Permissions;

public class Client
{
[SecurityPermission(SecurityAction.Demand)]
    public static void Main(string[] args)
    {
        // Create the channel.
        HttpClientChannel clientChannel = new HttpClientChannel();

        // Register the channel.
        ChannelServices.RegisterChannel(clientChannel);

        // Register as client for remote object.
        WellKnownClientTypeEntry remoteType = 
            new WellKnownClientTypeEntry(typeof(RemoteObject), 
            "http://localhost:9090/RemoteObject.rem");
        RemotingConfiguration.RegisterWellKnownClientType(remoteType);

        // Create a message sink.
        string objectUri;
        System.Runtime.Remoting.Messaging.IMessageSink messageSink = 
            clientChannel.CreateMessageSink(
            "http://localhost:9090/RemoteObject.rem", 
            null, out objectUri);
        Console.WriteLine(
            "The URI of the message sink is {0}.", 
            objectUri);
        if (messageSink != null)
        {
            Console.WriteLine("The type of the message sink is {0}.", 
                messageSink.GetType().ToString());
        }

        // Display the channel's properties using Keys and Item.
        foreach(string key in clientChannel.Keys)
        {
            Console.WriteLine(
                "clientChannel[{0}] = <{1}>", 
                key, clientChannel[key]);
        }

        // Parse the channel's URI.
        string objectUrl = "http://localhost:9090/RemoteObject.rem";
        string channelUri = clientChannel.Parse(objectUrl, out objectUri);
        Console.WriteLine("The object URL is {0}.", objectUrl);
        Console.WriteLine("The object URI is {0}.", objectUri);
        Console.WriteLine("The channel URI is {0}.", channelUri);

        // Create an instance of the remote object.
        RemoteObject service = new RemoteObject(); 

        // Invoke a method on the remote object.
        Console.WriteLine("The client is invoking the remote object.");
        Console.WriteLine("The remote object has been called {0} times.", 
            service.GetCount());
    }
}

//引入命名空间
using System;
using System.Runtime.Remoting;

// Remote object.
public class RemoteObject : MarshalByRefObject
{
    private int callCount = 0;

    public int GetCount()
    {
        Console.WriteLine("GetCount was called.");
        callCount++;
        return(callCount);
    }
}

//引入命名空间
using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;


public class MathServer
{
   public static int Main()
   {
      HttpChannel chan = new HttpChannel(9050);
      ChannelServices.RegisterChannel(chan);
      RemotingConfiguration.RegisterWellKnownServiceType(
         Type.GetType("MathClass, MathClass"), "MyMathServer",
         WellKnownObjectMode.SingleCall);
      Console.WriteLine("Hit <enter> to exit...");
      Console.ReadLine();
      return 0;
    }
}


public class MathClass : MarshalByRefObject
{
   public int Add(int a, int b)
   {
     int c = a + b;
     return c;
   }

   public int Subtract(int a, int b)
   {
      int c = a - b;
      return c;
   }

   public int Multiply(int a, int b)
   {
      int c = a * b;
      return c;
   }

   public int Divide(int a, int b)
   {
      int c;
      if (b != 0)
         c = a / b;
      else
         c = 0;
      return c;
   }
}